 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.ui.views.bookmarkexplorer;

 import java.util.List ;

 import org.eclipse.core.commands.operations.IUndoableOperation;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.ide.undo.DeleteMarkersOperation;
 import org.eclipse.ui.ide.undo.WorkspaceUndoUtil;
 import org.eclipse.ui.internal.views.bookmarkexplorer.BookmarkMessages;

 /**
  * Action to remove the selected bookmarks.
  */
 class RemoveBookmarkAction extends BookmarkAction {

     /**
      * Create a new instance of this class.
      *
      * @param view the view
      */
     public RemoveBookmarkAction(BookmarkNavigator view) {
         super(view, BookmarkMessages.RemoveBookmark_text);
         setToolTipText(BookmarkMessages.RemoveBookmark_toolTip);
         PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
                 IBookmarkHelpContextIds.REMOVE_BOOKMARK_ACTION);
         setEnabled(false);
     }

     /**
      * Delete the marker selection.
      */
     public void run() {
         final IStructuredSelection sel = getStructuredSelection();
         if (sel.isEmpty()) {
             return;
         }
         List list = sel.toList();
         IMarker[] markers = new IMarker[list.size()];
         list.toArray(markers);
         IUndoableOperation op = new DeleteMarkersOperation(markers, BookmarkMessages.RemoveBookmark_undoText);
         execute(op, BookmarkMessages.RemoveBookmark_errorTitle, null,
                 WorkspaceUndoUtil.getUIInfoAdapter(getView().getShell()));
     }

     public void selectionChanged(IStructuredSelection sel) {
         setEnabled(!sel.isEmpty());
     }
 }

